Machine for dipping and drying articles.



MACHINE FOR DIPRING AND yDRYING ARTICLES. APPLICATION FILED ocTfs, 1913.

u W.R0BERT&

i /fal Patented May-18, 1915.l

2 SHEETS-SHEET l- Zzwksses .ff if@ ::%Uamn' 7% @ma af, 9m-,l

n. w. ROBERTS.

'l MACHINE FOR DIPPING AND DRYING ARTICLES.

APPucATloN msu oche. 1913.

2 SHEETS-SHEET 2.

Patented My18,1915.

STATES I f To all whom t mag/concern Be it known `that LVDANIEL -W. Ronn'rs, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and panying drawings.

This invention relates; to al machine for coating articles. 1 Its objectvis lto provide mechanism by which small articles of various shapes and sizes may be evenly coated Vwith great rapidity, doing away with the expense of dipping and draining them, as' is the usual practice, and saving in the quantity of material employed, whileproducing a very even and finely4 finished surface.

The mechanism, in its preferred form, consists of a circular basket intovwhich the articles are dumped, en masse; a tank sur- .rounding the basket and containing the coating liquid into which the basket with the articles may be immersed; and a rotatable device on which the basket is suitably mounted so that the articles may be rapidly revolved t0 throw offj the superfluous liquid, thus producing an even coating. The basket is removable from the `rotatable mounting, so that it may be placed in a drier without removing the articles therefrom. This mechanism vhas various uses, among' -Which may be mentioned its employment in connection with the' ocess of Japannlng' described and claimed 1n my prior application No. 7 54,243,- filed March 14, 1913. 4

Figure 1, in he drawings, 1s a side eleva;

- tion of one form of my mechanism; Fig. 2

is atop plan, and Fig. 3 is a bottom plan of the same;-Fig. 4 is a central vertical section through the basket and pan; Figs. 5 and 6 are details of means for attaching the cover on ahasket. 'i

l The frame 'of tv e macline comprisesa table vhaving a rectangular top 10 suitably mounted on ourlegsv 1I secured to the earners thereof. A tank 12 adaptedy tc set loosely uponv this table top, is open at the top except for an inwardly turned ange 14 and has a closed bottom except for an opening 15 which isV surrounded by a n upright.' tube 16'securely 'mounted in this opemng and extendill'fzgf'l upwardly nearly the height of the tank. This opening and basket, from ROBERTS, or cLEvnL'ANn, oHIo, AssIGNoR To '1111.1?.mes-: :HAPIN'V comm, or cLnvnLAiIn, omo, A coaroa'rIoN ononlo. y

specification of Letters raient.` '.Patented May 18, 119.15. Application nea october e, 191s. serial Np. 793,533. l.

for the legs and greatly adding to the rigid` ity of the frame, as -well as supporting vthe .bearing 20. Mounted on the upperend of this shaft 18, is a substantially circular block` v24 which carries four depending spring arms 25 having outwardlyturned feet 26 at their lower ends standing normally just above the surface of the liquid coating 28 in the tank 12, so that they may be rapidly rotated with.- out coming in contact with the liquid.

The basket for containing thel articles to be coated is indicated at 30 in Fig. 4. This is preferably of metal, somewhat shallow i and circular in form and has a central opening surrounded by an upturned sleeve 31 adapted to surround and be rictionally engaged by the arms 25, while'allowing the bottom of the basket to rest on the outwardly turned feet 26. These arms tend normally to spring outwardly, thus providing this fric-y tional engagement whereby the basket mayv be rotated. f

Articles of various shapes and sizes-may be placed inthe basket, as indicated at 33 without regard to the form or relative position, that is, they. may substantially be dumped into the basket which is then cov# ered by a flat sheet metal cover 34 having a central opening corresponding to the open-A 'the cover 34, each bolt having its middle portion bent into a loop, as at 39,'which stands between the two strips 37, allowing an endwise movement of the bolt while preventing it coming out entirely from under `ing in the basket excepty that it has notches these strips. When the cover is in place the v bolts are slid outwardly to engage eyes 40 mounted on the side of the basket.

To prevent the articles, which ile up against the byv having some portion restingfagainst the cover 'near .its Vcircum erence, during the rapid rrotation-or spinning of the ecoming marked or blemished' fiat surface of the cover plate 34, I provide a lining of wire mesh, for the `under side of the cover, as indicated at 42 in Fig. 6. Now when the articles are placed in the basket and thev cover secured 1n position, they are then immersed in the coating liquid in the followingl manner: a pair of depending arms 45, one on each side of the tank, `are pivotedy tothe tank at 46 and extend through suitable openings in the top of the frame.

- At their lower ends 47, they are pivotally connected to rock arms 48 rigidlymounted on the outer ends of a rock shaft 49,' mounted in suitable brackets 50 secured to the under side 4of the top plate 10. Another rock arm 52 is rigidly mounted at the middle portion ofl the rock shaft49 and is connected by a link' 54: with a foot lever 55, pivotally carried at its inner end .by a bracket 56 on the spider 21 and having at its 'outer end a suitable pedal 58. When this foot lever is depressed, it acts through the connections described to raise thetank `12,` from the table, carrying the liquid up. wardly, until the articles within the basket' are entirely immersed. This immersion is only momentary, immediately after which the basket .may be rotated to throw ed the l'to - @5 vsizes may be dipped and dried very rapidly,

superiuous liquid coating from the articles and spread the remaining coatin thinly and I evenly. After this.4 spinning of t e basket, itmay be removed from the arms 25, and'taken to a baking oven or drier, where the articles lare baked without removing them from the .35

basket.'V v

:As `aZmeans for rotating the basket, I mount a pulley 60 onlthe vshaft 18. As

shown,th1s pulley Ais driven by a quarter turn belt 61, running over a pulley 62, (Fig.

v2) mounted on a counter-shaft 64, 'carried the basket, I provide a forked member 72 straddling one' reach of the belt A70. This forked member is carried on a lever 73 oted at to the under side'of the table and maybe operated by a handle 7 6 at the same side of the machine as the'treadle 55. This allows the operator to control the raising of the tank for immersing the articles, and the shifting of the belt for the application of power, from' the sameside of the machine.

-The removalzof the basket from the machine, allowing the articles to be baked with-v out removing them from it, provides greatv f convenience in handling the articles r mByethe vuse ofna number 'of baskets,

End that articles of a wide variety'of lshapes'and ulley 67,v to

piv-

afidly.

ramones one basket full of articles being placed in position in the machine as -soon as another 1s taken out of 1t.

I also ind that with-some classes of articles and coatings the articles may/be dried by leaving them' in the machine and spinning them for a longer time, the whirling of the articles enabling the air to dry them ..1

by evaporation.

Having thus described my invention, what I claim is:

1. In a device of the character described, l

when rotated, and means for rotating theshaft to spinsthe basket. y

2. In a device of the character described,

f' the combination of a vessel for liquid having a -side wall' and central opening in the-bottom, a sleeve mounted'in said opening and extending upwardly, a shaft extending through said sleeve, 'a supportv carried by said shaft and dependingoutside of said sleeve, and a basket having a central opening adapted to be engaged by said support, while within said wall.

'3. In a device of the character described, the combination of a vessel forliquid having a side wall and a central opening in the bottom, a sleeve mounted in said opening and extending upwardly, ashaft within said vessel, depending arms carried by said shaft and springing outwardly, a basket havin a central opening adapted to be engaged said arms, means for bringing the' basket and liquid together and means for rotating theushaft while the basket is within said wa 4.. In a device of the character described, the combination of -a cylindrical. tank, a support for said tank, a shaft mounted in said sufpport and extending through the bot tom o the tank, a sleeve mounted in the bottom of the tank'surrounding said shaft, a basket within the tank having a central o enlng, and a supportv adapted to remova` ly engage said opening whereby the basket is held normally above the liquid,'a pulley on said shaft, links pivotally attached tothe sides of the tank whereby thetank may be raised to `immerse the basket, and a treadle for operating said means l 5. Ina device of the character descri'l'iedE the combination 'of a 'container for vliqui having bottom `and sidewalls and-'an openat me we im ias ing in the bottom, a sleeve surroundingtsaid opening, and extending upwardly within the container, a shaft within-said sleeva'and" 'spring arms carried bys'aid shaft' and depeadingv around said-sleeve.

6. In a 'device of thel character described, the combination of a container for liquid having a bottom and side walls and an openingin the bottom, a sleeve secured to the bottom and surrounding said opening and extending upwardly within the container, a shaft extending through said sleeve, a support. attached to said shaft and extending over the upper end ofl said sleeve and dependin outside of said sleeve, a container adapte to be carried by said support, means for immersing said last named container in the liquid in the first mentioned container, t and means for rotatingv the support.

Yextending upwardly through said sleeve and having a support comprising spring arms extending downwardly past the outside of i witnesses .said sleeve, said support being-adapted to engage the containerand rotate therewith.

8. A container for articles having an opening in its side wall and having: a. central opening in the form of a sleeve', a vessel for liquid having a wall adapted to surround the container and having an opening in the bottom, a sleeve mounted in said opening, a shaft extending therethrough, a support carried by said shaft and de ending outside the sleeve of the vessel an vadapted to enter` Aand enga e the sleeve of the container, means for rotating said shaft and support, and means for bringing the vessel and container together, the sleeve of the vessel beingadapted to pass within the sleeve of the container.

4 In testimony whereof, I hereunto aix my 40 signature in the presence of two witnesses. V

DANIEL W. ROBERTS.

ALBERT H. BATES, JUSTIN W. Mmm.. 

